Fast Steps for Repairing a Frozen Air Conditioner
Does the air flowing from your supply registers suddenly appear warm? Inspect the indoor component of your air conditioner. This component is situated inside your furnace or air handler, if you have a heat pump. If there’s water seeping onto the floor, there could be ice on the evaporator coil. The AC coil in the equipment could have frosted over. You’ll need to melt it before it can cool your home again.
Here’s the things you should do. If you can’t get the coil defrosted, Service Experts Heating, Air Conditioning & Plumbing is here to support you with air conditioning repair in the U.S. that includes a a 100% satisfaction guarantee.*
Step 1: Turn the Air Conditioning Off and the Blower On
First things first—set the thermostat from “cool” to “off.” This prevents cold refrigerant from going to the outdoor compressor, which could harm it and cause an expensive repair.
Next, adjust the fan from “auto” to “on.” This produces hot airflow over the frozen coils to force them to defrost faster. Double check to set the cooling mode to “off” so the air conditioner doesn’t start a cooling cycle.
It can take under an hour or the majority of the day for the ice to thaw, depending on the degree of the ice. While you’re waiting, keep an eye on the condensate pan underneath the AC unit. If the drain line is clogged, it might spill over as the ice melts, possibly creating water damage.
Step 2: Diagnose the Situation
Bad airflow is a main cause for an AC to freeze up. Here’s how to troubleshoot the situation:
- Look at the filter. Low airflow through a filthy filter could be the culprit. Check and replace the filter monthly or once you notice dust buildup.
- Open any sealed supply vents. Your home’s supply registers should stay open all the time. Shutting vents limits airflow over the evaporator coil, which can lead it to freeze.
- Be on the lookout for covered return vents. These typically don’t have shiftable louvers, but furniture, rugs or curtains can still block them.
- Insufficient refrigerant: While airflow restrictions are the most typical suspect, your air conditioner may also not have enough refrigerant. Depending on when it was installed, it may have Freon®. Not enough refrigerant requires pro assistance from a certified HVAC tech. H2: Step 3: Contact an HVAC Technician at Service Experts Heating, Air Conditioning & Plumbing
If low airflow doesn’t feel like the problem, then another problem is making your AC freeze. If this is the case, just thawing it out won’t repair the trouble. The evaporator coil will possibly keep freezing unless you take care of the root issue. Get in touch with an HVAC tech to look for problems with your air conditioner, which could include:
- Refrigerant leak: AC units keep using refrigerant, so it shouldn’t run low. Not enough refrigerant is a sign of a leak somewhere. Only a professional can locate the leak, repair it, and recharge the system to the appropriate level.
- Dirty evaporator coil: If dirt collects on the coil, air can’t flow over it, and it’s apt to freeze.
- Malfunctioning blower: A defective motor or unbalanced fan can halt airflow over the evaporator coil.
When your AC freezes up, contact the ACE-certified pros at Service Experts Heating, Air Conditioning & Plumbing to fix the situation. We have a lot of experience helping homeowners diagnose their air conditioners, and we’re confident we can get things operating again quickly. Contact us at 866-397-3787 to get air conditioning repair in the U.S. with us now.
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